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15.4.1 C and C++

Since C and C++ are so closely related, many features of gdb apply to both languages. Whenever this is the case, we discuss those languages together.

The C++ debugging facilities are jointly implemented by the C++ compiler and gdb. Therefore, to debug your C++ code effectively, you must compile your C++ programs with a supported C++ compiler, such as gnu g++, or the HP ANSI C++ compiler (aCC).

For best results when using gnu C++, use the DWARF 2 debugging format; if it doesn't work on your system, try the stabs+ debugging format. You can select those formats explicitly with the g++ command-line options -gdwarf-2 and -gstabs+. See Options for Debugging Your Program or GCC (Using the gnu Compiler Collection (GCC)).